SW 6TH AVE(CONN3) over I-405 (HWY 61)


+45.50755, -122.68415
45°30'27" N, 122°41'03" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:SW 6TH AVE(CONN3) over I-405 (HWY 61)
Structure number:09158 061C00102
Location:0.4 MI S OF SW 12TH AVE
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:84.0 ft. [25.6 m]
Total length:267.1 ft. [81.4 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:50.5 ft. [15.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:39°
Owner:State Highway Agency [01]
Year built:1964
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:4
Main spans material:Concrete continuous [2]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: July 2015 

Status:Open, no restriction [A]
Average daily traffic:125,300 [as of 2014]
Truck traffic:5% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:25.0 tons [22.7 metric tons]
Inventory rating:19.2 tons [17.5 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:33.3
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$2,244,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
July 201533.3Functionally obsoleteSatisfactoryFairSatisfactory125300
July 201333.3Functionally obsoleteSatisfactoryFairSatisfactory119800
July 201143.3Functionally obsoleteSatisfactorySatisfactoryGood119800
May 201032.3Functionally obsoleteFairFairGood78800
May 200833.4Functionally obsoleteFairFairGood78800
May 200642.7Functionally obsoleteFairFairGood24071
May 200463.3Functionally obsoleteFairFairGood24071
March 200278.2Functionally obsoleteSatisfactoryGoodGood23370
March 200076.8Functionally obsoleteSatisfactoryGoodGood17400
20000.0Not applicable---76200
March 199878.9Functionally obsoleteGoodGoodGood17400
March 19960.0Not applicableGoodGoodGood17400
March 19940.0Not applicableSatisfactorySatisfactoryGood17400
March 19920.0Not applicableSatisfactorySatisfactoryGood17400
March 19900.0Not applicableSatisfactorySatisfactoryGood16150